THE IMPERIAL CENSUS, 1767-1777         The Imperial Diet, for which the census was created, has reached its 30th anniversary since the Edict of Establishment, a vibrant institution of Imperial government.   This being so, the Ministry of Civil Affairs follows in the edicts of the Crown, clearing the rolls, and reissuing the census. This census shall last from the year 1767 to 1777.   SECTION I: THE IMPERIAL CENSUS   The following matters sha